Timeline for What are the reasons for considering rings without identity?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Jun 17, 2019 at 5:57 | comment | added | YCor | Another thing occurring in $K$-algebras without identity [associative or not] is that ideals (as ring) can fail to be $K$-submodules (this is automatic in presence of identity). So we have to be careful with using the word "ideal". A typical example is just a 1-dimensional Lie algebra (=null ring). | |
| Jun 17, 2019 at 3:57 | history | edited | Martin Sleziak | CC BY-SA 4.0 |
corrected a minor typo (the question has been bumped anyway)
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| Jan 26, 2015 at 2:35 | history | made wiki | Post Made Community Wiki by Todd Trimble | ||
| Jan 25, 2015 at 19:57 | comment | added | Todd Trimble | I don't see it as a reason, but it's a cute fact worth recording. | |
| Jan 25, 2015 at 17:51 | history | answered | Gérard Lang | CC BY-SA 3.0 |